PSP SNES and GBA Emulator

I'm upgrading my PSP to 3.03 oe-c and wanted to know how would I play snes and gba on PSP? I use Zsnesw and VisualboyAdvance for my PC, am I suppose to run those on my PSP? Could someone tell me a step by step process? I'm pretty new at this. Thanks alot!!!

i don't know about a snes emulator, but for a gba, you can use VBAPSP. download it from from dl.qj.net

but just to let you know, any rom bigger than 3-4MB will run really slow. I tried Final Fantasy Tactics Advanced, and it was way too slow to play. Instead of downloading gba emulators download daedalus R11, it is a n64 emulator and works really good.